XML 39 R27.htm IDEA: XBRL DOCUMENT
v3.23.1

Note 1 - Summary of Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Notes Tables |
Financing Receivable, Allowance for Credit Loss [Table Text Block] |
|  | 2022 |  |  | 2021 |
Allowance for doubtful accounts at the beginning of the period |  | $ | 409,076 |  |  | $ | 498,044 |
Bad debt expense |  |  | (24,534 | ) |  |  | (28,499 | )
Receivables written off during the periods |  |  | (295,778 | ) |  |  | (24,415 | )
Effect of currency translation |  |  | (29,205 | ) |  |  | (36,054 | )
Allowance for doubtful accounts at the end of the period |  | $ | 59,559 |  |  | $ | 409,076 |
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block] |
|  | % Distribution |  |  | For the Year Ended December 31 |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Americas |  |  | 7 | % |  |  | 17 | % |  | $ | 1,073,433 |  |  | $ | 3,121,797 |
Asia-Pacific |  |  | 21 | % |  |  | 25 | % |  |  | 3,406,420 |  |  |  | 4,658,070 |
Europe |  |  | 59 | % |  |  | 58 | % |  |  | 9,379,337 |  |  |  | 10,493,575 |
Middle East & Africa |  |  | 13 | % |  |  | 0 | % |  |  | 2,123,248 |  |  |  | - |
|  |  | 100 | % |  |  | 100 | % |  | $ | 15,982,438 |  |  | $ | 18,273,442 |
Reconciliation of Revenue from Segments to Consolidated [Table Text Block] |
|  | % Distribution |  |  | For the Year Ended December 31 |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Water |  |  | 33 | % |  |  | 39 | % |  | $ | 5,297,286 |  |  | $ | 7,196,465 |
Ceramics |  |  | 43 | % |  |  | 39 | % |  |  | 6,844,861 |  |  |  | 7,183,868 |
Plastics |  |  | 22 | % |  |  | 20 | % |  |  | 3,528,606 |  |  |  | 3,615,681 |
Corporate |  |  | 2 | % |  |  | 2 | % |  |  | 311,685 |  |  |  | 277,428 |
|  |  | 100 | % |  |  | 100 | % |  | $ | 15,982,438 |  |  | $ | 18,273,442 |
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
|  | 2022 |  |  | 2021 |
Cost incurred |  | $ | 3,860,179 |  |  | $ | 3,381,994 |
Unbilled project deliveries |  |  | 950,105 |  |  |  | 454,158 |
VAT |  |  | 229,006 |  |  |  | 542,255 |
Other receivables |  |  | 45,814 |  |  |  | 60,158 |
Prepayments |  |  | (3,363,039 | ) |  |  | (2,947,736 | )
Deferred Revenue |  |  | (118,327 | ) |  |  | (499,146 | )
|  | $ | 1,603,738 |  |  | $ | 991,682 |
Distributed as follows: |  |  |  |  |  |  |  |
Contract assets |  | $ | 2,253,295 |  |  | $ | 1,906,510 |
Contract liabilities |  |  | (649,557 | ) |  |  | (914,828 | )
|  | $ | 1,603,738 |  |  | $ | 991,682 |

X
- Definition Tabular disclosure of allowance for credit loss on financing receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
Name: | us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130551-203045 + Details
Name: | us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of all significant reconciling items in the reconciliation of total revenues from reportable segments to the entity's consolidated revenues. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8924-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 + Details
Name: | us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9038-108599 + Details
Name: | us-gaap_ScheduleOfRevenueFromExternalCustomersAttributedToForeignCountriesByGeographicAreaTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration